OJ 287
OJ 287 is a deep-sky object in the constellation Cancer.
Blazar thought to hold a pair of supermassive black holes
Facts
| Constellation | Cancer |
|---|---|
| Position (J2000) | 8h 54m 48s, +20° 06′ |
When and how to see it
OJ 287 is highest in the sky at midnight in February. From India (about 20° N) it climbs to about 90° above the horizon; from 50° N, to about 60°.
Heights are worked out for India and for 50° N. Set your location in Settings to see them for where you are.
For tonight's best time from your own town, the darkness and the Moon, open it on the map and see its "Tonight from your location" card.
More in Cancer
Everything in Cancer · All 88 constellations · All sky objects
Data: · Data sources & credits